ICM205B VGA/QVGA CMOS image sensor with digital YUV output ...

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Color saturation control ICM205B: VGA CMOS sensor with digital YUV output Engineering Specification V1.1, July. 2002 The color saturation can be enhanced by adjusting the Saturation Factor register 0x2D (AD_SATURATION, Default = 0x30). The following examples show how to set the Saturation to 0, 1, 1.5, and 2: Saturation 0 : AD_SATURATION = 0x00, no color (B/W) 1 : AD_SATURATION = 0x20 1.5: AD_SATURATION = 0x30 2.0: AD_SATURATION = 0x40 Gamma Correction To boost darker signal to match the video monitor characteristic, gamma correction are performed: V V = o 1/ γ i where Vi is normalized (ranged from 0 to 1) R, G, or B signal coming from the white balancing module, and Vo is normalized final output. The Gamma values(parameter γ) are provided in 205B, use register 0x2c (AD_GAMMA) to select one of them: AD_GAMMA 0 : Gamma = 1 (no Gamma) AD_GAMMA 1 : Gamma = 1.3 AD_GAMMA 2 : Gamma = 1.5 AD_GAMMA 3 : Gamma = 1.7 AD_GAMMA 4 : Gamma = 1.9 AD_GAMMA 5 : Gamma = 2.2 AD_GAMMA 6 : Gamma = 2.5 Brightness The Brightness offset can be adjusted by Brightness Offset register 0x2B (AD_BRIGHT_OFFSET, Default =0). The default value =0 means the Brightness is not adjusted. The following examples show how to increase/decrease the Brightness Level: Increase Brightness by 10: AD_BRIGHT_OFFSET = 0x0A Decrease Brightness by10: AD_BRIGHT_OFFSET = 0x8A ©2000, 2001, 2002 IC Media Corporation & IC Media 10 Technology Corp. 2002/8/7 web site: http://www.ic-media.com/ web site: http://www.ic-media.com.tw/ page 10
Hue ICM205B: VGA CMOS sensor with digital YUV output Engineering Specification V1.1, July. 2002 The Hue function is used to change the image color temperature. The color temperature is changed by rotating the (U,V) vector: U’ = U * COS + V * SIN V’ = U * COS – V * SIN The value of COS and SIN is define in the following registers: 0x29 (AD_SIN, Default = 0) The SIN value. Default = 0x00 is equal to AD_SIN = 0. 0x2A (AD_COS, Default = 0x7F) The COS value. Default = 0x7F is equal to AD_COS = 1. Contrast The Contrast function is control by the following function Y’ = Y * CONTRAST The following registers: 0x28 (AD_CONTRAST, Default = 0x20) Unsigned 1.5 format(bit5~bit0). Output Format The following output data format is provided: 8-bit YUV 8-bit YCbCr 16-bit YUV 16-bit YCbCr 16-bit RGB 24-bit RGB 8-bit raw data The output mode can be VGA or Sub-sampling QVGA and QQVGA. Register 0x52 (AD_OUTSEL) is used to select the various output format and output mode. ©2000, 2001, 2002 IC Media Corporation & IC Media 11 Technology Corp. 2002/8/7 web site: http://www.ic-media.com/ web site: http://www.ic-media.com.tw/ page 11
Page 1 and 2: ICM205B: VGA CMOS sensor with digit
Page 3 and 4: Features ICM205B: VGA CMOS sensor w
Page 5 and 6: 205B Pin Assignment 7 8 9 10 11 12
Page 7 and 8: Functional Description Image Array
Page 9: Auto White Balancing ICM205B: VGA C
Page 13 and 14: Control Registers by serial bus Not
Page 15 and 16: 0x10 0x11 0x14 0x15 0x18 0x19 0x1A
Page 23 and 24: VILS VIH VIHS VOL VOH RL Voltage Sc
Page 25 and 26: vsync hsync blank hsync blank pclk
Page 27 and 28: vsync hsync blank vsync hsync pclk
Page 29 and 30: vsync hsync blank hsync blank pclk
Page 31 and 32: 8-bit 4-2-2 YVYU 0x52 bit 6=0 bit 5
Page 33 and 34: 16-bit 4-2-2 YVYU 0x52 bit 6=0 bit
Page 35 and 36: 24-bit RGB 0x52 bit 6=0 bit 5=0 ICM
Page 37 and 38: 8-bit 4-2-2 YVYU 0x52 bit 6=0 bit 5
Page 39 and 40: 16-bit 4-2-2 YVYU 0x52 bit 6=0 bit
Page 41 and 42: 16-bit RGB (5,6,5) Data out [15:0]
Page 43 and 44: 8-bit 4-2-2 YrYCb 0x52 bit 6=0 bit5
Page 45 and 46: 16-bit 4-2-2 YCrYCb 0x52 bit 6=0 bi
Page 47 and 48: Pixel Clock Duty Cycle ICM205B: VGA

ICM205B VGA/QVGA CMOS image sensor with digital YUV output ...

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